Jack Phoenix fb690eeda4 Remove broken compatibility hack for the legacy SkinTemplateToolboxEnd hook
SkinTemplateToolboxEnd hook really shouldn't be used and extensions should have been using BaseTemplateToolbox hook instead, for that hook's been around since MW 1.18.

Also this code was broken because $boxes was undefined.

Change-Id: I34537e8eb6ec0109253b5470d12d12d86c4dada0
..
SkinTimeless.php Declare each class property on separate lines
TimelessTemplate.php Remove broken compatibility hack for the legacy SkinTemplateToolboxEnd hook